RADIO EQUIPMENT AND SYSTEMS (RES). RADIO TRANSMITTERS AND RECEIVERS AT AERONAUTICAL STATIONS OF THE AERONAUTICAL MOBILE SERVICE OPERATING IN THE VHF BAND (118 MHZ-137 MHZ) USING AMPLITUDE MODULATION AND 8,33 KHZ CHANNEL SPACING. TECHNICAL CHARACTERISTICS AND METHODS OF MEASUREMENT.
€98.00
A GUIDE TO THE APPLICATION OF TBR 21.
€160.00
PUBLIC SWITCHED TELEPHONE NETWORK (PSTN). METHOD OF RATING TERMINAL EQUIPMENT SO THAT IT CAN BE CONNECTED IN SERIES AND/OR IN PARALLEL TO A NETWORK TERMINATION POINT (NTP).
€69.00
INTEGRATED SERVICES DIGITAL NETWORK (ISDN); USER-NETWORK INTERFACE DATA LINK LAYER SPECIFICATION. APPLICATION OF CCITT RECOMMENDATIONS Q.920/I.440 AND Q.921/I.441.
€166.00
Transmission and Multiplexing (TM). Digital fixed point-to-point radio link equipment operating in the frequency range 24,25 GHz to 29,50 GHz.
Digital Enhanced Cordless Telecommunications (DECT). Approval test specification. Part 1: Radio.
€139.00
Transmission and Multiplexing (TM). Digital Radio Relay Systems (DRRS). Parameters for DRRS for the transmission of digital signals and analogue video signals operating at 38 GHz.
Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) for Maritime Mobile Earth Stations (MMES) operating in the 1,5/1,6 GHz bands providing Low Bit Rate Data Communications (LBRDC) for the Global Maritime Distress and Safety System (GMDSS)
Business TeleCommunications (BTC). 140 Mbit/s digital leased lines (D140U and D140S). Terminal equipment interface.
€85.00
Attachment requirements for Data Terminal Equipment (DTE) to connect to public networks that have physical and electrical network presentations based upon the ITU-T V-series of Recommendations.
€96.00
Business TeleCommunications (BTC). Multiple 64 kbit/s digital unrestricted leased lines with octet integrity presented at a structured 2 048 kbit/s interface at either or both ends (D64M). Connection characteristics and network interface presentation
€73.00
Speech Processing, Transmission & Quality Aspects (STQ); QoS parameter definitions and measurements; Part 1: Parameters for voice telephony service required under the ONP Voice Telephony Directive 98/10/EC.
€77.00
Telecommunications Security. A guide to specifying requirements for cryptographic algorithms.
Business TeleCommunications (BTC); 34 Mbit/s and 140 Mbit/s digital leased lines (D34U, D34S, D140U, D140S); Network interface presentation.
€79.00
Business TeleCommunications (BTC); 34 Mbit/s digital leased lines (D34U and D34S); Connection characteristics.
€84.00
